Relief Altar Drum (31 BCE-300 CE)

This semicylindrical marble altar drum or base brings together architecture, ritual, and divine imagery in a single carefully composed object. Carved in high relief, it shows a solemn procession of draped gods and heroes moving across its curved surface.

Datec. 27–25 BCE
Place of originNicopolis / Actium, Epirus, Greece.
Culture/PeriodRoman, Augustan period; archaizing / Neo-Attic style
Material/TechniqueMarble, carved in high relief
DimensionsHeight: 71 cm (27.95 in), Diameter: 99 cm (38.98 in)
Current locationArchaeological Museum of Nicopolis, Preveza, Greece.
LicenceRelief Altar Drum – Nicopolis Museum · 3D model by shareeurope.net · CC BY 4.0

This semicylindrical marble altar or base brings together architecture, ritual, and divine imagery in a single carefully composed object. Carved in high relief, it shows a solemn procession of draped gods and heroes moving across its curved surface, while a frieze of palmettes crowns the rim and classical moldings frame the foot below. At first glance it may seem purely decorative, yet the relief was made to do far more than ornament stone. It presents divine order in visible form, shaping the viewer’s experience of sacred space through image, style, and architectural setting.

Between Actium and the Roman Imperial World

The object is associated with ancient Nicopolis in Epirus, a city founded by Octavian, later Augustus, after his victory at the Battle of Actium in 31 BCE. It is now displayed in the Archaeological Museum of Nicopolis in Preveza, Greece. Relief drums of this kind served as small altars or architectural bases in sanctuaries and public settings, and this example reflects the rich sculptural environment that developed around the new city and its monumental sacred landscape. Its dating, however, is not entirely straightforward. Some museum and overview descriptions place it broadly in the Roman Imperial period, often in the 2nd–3rd century CE. Yet archaeological interpretation connected specifically with the Actium Victory Monument has suggested that this type of relief altar may belong instead to the early Augustan phase, around 27–25 BCE. It is therefore best understood with some caution: either as an Augustan work closely tied to the monumental program created after Actium, or as a later Roman object that continued to employ an intentionally classicizing visual language rooted in earlier Greek models.

The relief is especially important because it appears to have been connected with the sacred complex around Augustus’ Victory Monument at Actium, and quite possibly with an Altar of Apollo within that setting. This context matters greatly. Apollo was one of the gods most strongly associated with Augustus’ public image, and at Nicopolis the cultic and political meaning of Apollo became inseparable from the memory of victory and the foundation of a new order.

A Ceremony of Gods Rather Than a Myth in Action

The scene is best read not as a dramatic narrative in which a single mythological event unfolds, but as a stately divine procession or epiphany. The figures move in ordered sequence, creating an image of harmony, rank, and sacred presence. Their purpose is not to enact violent mythic action, but to appear, to authorize, and to sanctify the place to which the object belonged. Identifications usually read the figures from left to right as Athena, Herakles, Hera or Hebe, the Three Graces or Nymphs, Hermes, Leto, Artemis, and Apollo. This sequence is revealing. Athena introduces the procession with an aura of wisdom, order, and legitimate power. Herakles brings heroic strength and disciplined endurance. The uncertainty between Hera and Hebe is itself meaningful: Hera would emphasize divine sovereignty and Olympian hierarchy, while Hebe would create a closer link with Herakles and suggest youth, renewal, and reconciliation. The group of three female figures, interpreted either as the Charites or as Nymphs, softens and enriches the program. If they are the Graces, they introduce beauty, festivity, generosity, and divine favor. If they are Nymphs, they evoke sacred landscape, springs, groves, and the living environment of a cult. Hermes, placed after them, acts as a figure of transition, a god of movement and mediation who leads the viewer onward toward the final and most significant triad.

That culmination lies in Leto, Artemis, and Apollo. Their grouping forms the clearest center of meaning within the relief. Leto embodies maternal dignity and divine lineage; Artemis brings associations of protection, boundaries, and sacred purity; and Apollo gathers together the most publicly resonant themes of the monument: order, music, prophecy, cult, harmony, and divine sanction. In the context of Nicopolis after Actium, Apollo was more than a mythological figure. He was also part of the religious language through which Augustus framed his victory and the legitimacy of the world he claimed to restore.

Archaizing Style and Augustan Meaning

One of the most striking features of the object is its archaistic or Neo-Attic style. Rather than adopting the more fluid naturalism associated with much Roman sculpture, the relief looks deliberately backward. It draws on older Greek visual traditions in order to create an impression of timeless authority, piety, and cultural prestige. Such classicizing choices were not accidental. Roman patrons and workshops often revived earlier Greek styles when they wished to evoke continuity with the sacred and artistic past. Here that choice is especially effective. The figures are not meant to appear as ordinary bodies caught in transient motion, but as enduring embodiments of divine qualities. This suits Nicopolis perfectly. The city itself was new, founded in response to a very specific historical event, yet its imagery sought to place that new foundation within the long and venerable world of Greek religion and classical memory. The relief therefore works on two levels at once: it is a devotional object, and it is also a political image of order sanctioned by the gods.

The Language of Ornament and Form

The object’s carved ornament is not merely decorative framing. The anthemion or palmette frieze around the upper rim, together with the bead-and-reel and egg-and-dart moldings at the base, belongs to a long-established Greco-Roman architectural vocabulary. These motifs signal refinement, classical tradition, and formal integration into a broader monumental setting. They help transform the procession from an isolated image into part of a ritual and architectural whole. Its semicylindrical shape is equally important. Because the relief curves around a rounded body rather than unfolding on a flat panel, the figures gain a spatial presence that would have interacted with movement around the object. This makes especially good sense for an altar or cultic base, where viewers may have approached it from an angle, moved around it, or encountered it as part of ceremonial space. The form encourages the sense that the procession does not simply sit before the viewer, but participates in the sacred environment around it.

Material, Technique, and Dimensions

The object is made of marble and carved in high relief. It takes the form of a monolithic semicylindrical altar or architectural base, with draped figures projecting across the curved surface and with classical ornamental moldings framing the relief. The combination of sculpted figures and architectural decoration shows how closely sculpture and monument design were joined in Roman sacred art. The object measures approximately 71 cm in height (27.95 in) and 110 cm in diameter (43.31 in). 

Discovery, Setting, and Later Home

The relief was reportedly found in excavations connected with Augustus’ Victory Monument at Actium, near Nicopolis. This provenance strongly supports the interpretation that it belonged to the monumental and cultic complex established in the aftermath of Augustus’ victory. If it was indeed part of the Altar of Apollo or a closely related structure, then the object once stood within one of the most ideologically charged sacred landscapes of the early Roman Mediterranean. Today it is preserved and displayed in the Archaeological Museum of Nicopolis, Preveza, Epirus, Greece. In the museum, the object has been removed from its original ritual setting, yet it still retains the power to communicate the union of religion, art, and imperial message that shaped its creation.